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Proceedings Paper

Quantum enhanced classical imaging and metrology (Conference Presentation)
Author(s): Bohumil Stoklasa; Jaroslav Rehacek; Zdenek Hradil; Martin Paur; Libor Motka; Luis Lorenzo Sánchez-Soto

Paper Abstract

The concepts of quantum detection and estimation theory can be of great help in the analysis of faint signals, which must be treated with extreme care due to the fragility and subtlety. But this is surely not the only domain, where the advanced concepts may be applied. Strong optical fields can be analyzed by similar techniques since by virtue of first quantization any optical wave plays role of a quantum state. More precisely, a classical mode of light can be given and alternative interpretation as a quantum state of the spatial degrees of freedom of a photon. Here the formulation of classical optics meets those of quantum information processing. The goal of the research is to optimize classical sensing schemes of strong signals in order to attain the best performance allowed by Nature. As examples of the approach, measurement of two point-like sources separation and full characterization of laser beams by a phase-space tomography will be discussed both theoretically and experimentally.

Paper Details

Date Published: 19 October 2017
Proc. SPIE 10442, Quantum Information Science and Technology III, 104420H (19 October 2017); doi: 10.1117/12.2279533
Show Author Affiliations
Bohumil Stoklasa, Palacký Univ. Olomouc (Czech Republic)
Jaroslav Rehacek, Palacký Univ. Olomouc (Czech Republic)
Zdenek Hradil, Palacký Univ. Olomouc (Czech Republic)
Martin Paur, Palacký Univ. Olomouc (Czech Republic)
Libor Motka, Palacký Univ. Olomouc (Czech Republic)
Luis Lorenzo Sánchez-Soto, Univ. Complutense de Madrid (Spain)

Published in SPIE Proceedings Vol. 10442:
Quantum Information Science and Technology III
Mark T. Gruneisen; Miloslav Dusek; John G. Rarity, Editor(s)

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